TABLE 1.
Complete Agreement and Major Disagreement in Defining Resectability Status and Tumor-Vessel Contact Among All Observers or Subgroups
| Outcome Measures | All Observers | Volume ≥60* | Volume <60* | P | Surgeons | Radiologists | P |
|---|---|---|---|---|---|---|---|
| Resectability status | |||||||
| Complete agreement, n (%) | 5 (7.2) | 9 (13) | 16 (23.2) | 0.184 | 13 (18.8) | 5 (7.2) | 0.074 |
| Resectable | 3 | 7 | 14 | 10 | 3 | ||
| Borderline resectable | 0 | 0 | 0 | 0 | 0 | ||
| Locally advanced | 2 | 2 | 2 | 3 | 2 | ||
| Major disagreement, n (%) | 25 (36.2) | 10 (14.5) | 14 (20.3) | 0.501 | 20 (30) | 16 (23.2) | 0.561 |
| Tumor-venous contact | |||||||
| Superior mesenteric vein | |||||||
| Complete agreement, n (%) | 10 (14.5) | 10 (14.5) | 20 (29) | 0.062 | 16 (23.2) | 10 (14.5) | 0.276 |
| Absent | 8 | 8 | 13 | 11 | 8 | ||
| ≤180° | 0 | 0 | 1 | 0 | 0 | ||
| >180° | 2 | 2 | 6 | 5 | 2 | ||
| Major disagreement, n (%) | 23 (33.3) | 15 (21.7) | 13 (18.8) | 0.832 | 18 (26.1) | 17 (24.6) | 1 |
| Main portal vein | |||||||
| Complete agreement, n (%) | 21 (30.4) | 28 (40.6) | 32 (46.4) | 0.606 | 25 (36.2) | 28 (40.6) | 0.726 |
| Absent | 20 | 26 | 27 | 22 | 27 | ||
| ≤180° | 0 | 0 | 0 | 0 | 0 | ||
| >180° | 1 | 2 | 5 | 3 | 1 | ||
| Major disagreement, n (%) | 17 (24.6) | 14 (20.3) | 5 (7.2) | 0.046 | 15 (21.7) | 10 (14.5) | 0.377 |
| Tumor-arterial contact | |||||||
| Superior mesenteric artery | |||||||
| Complete agreement, n (%) | 24 (34.8) | 30 (43.5) | 41 (59.4) | 0.088 | 36 (52.2) | 26 (37.7) | 0.123 |
| Absent | 24 | 29 | 38 | 35 | 25 | ||
| ≤180° | 0 | 0 | 1 | 0 | 0 | ||
| >180° | 0 | 1 | 2 | 1 | 1 | ||
| Major disagreement, n (%) | 16 (23.2) | 10 (14.5) | 5 (7.2) | 0.274 | 10 (14.5) | 12 (17.4) | 0.817 |
| Celiac axis | |||||||
| Complete agreement, n (%) | 29 (42) | 31 (44.9) | 52 (75.4) | <0.001 | 44 (63.8) | 31 (44.9) | 0.039 |
| Absent | 29 | 30 | 51 | 44 | 31 | ||
| ≤180° | 0 | 0 | 0 | 0 | 0 | ||
| >180° | 0 | 1 | 1 | 0 | 0 | ||
| Major disagreement, n (%) | 13 (18.8) | 9 (13) | 7 (10.1) | 0.791 | 9 (13) | 10 (14.5) | 1 |
| Common hepatic artery | |||||||
| Complete agreement, n (%) | 15 (21.7) | 17 (24.6) | 48 (69.6) | <0.001 | 41 (59.4) | 16 (23.2) | <0.001 |
| Absent | 15 | 17 | 47 | 41 | 16 | ||
| ≤180° | 0 | 0 | 0 | 0 | 0 | ||
| >180° | 0 | 0 | 1 | 0 | 0 | ||
| Major disagreement, n (%) | 23 (33.3) | 14 (20.3) | 7 (10.1) | 0.154 | 14 (20.3) | 15 (21.7) | 1 |
In case of complete agreement, the categories to which CT scans were assigned are indicated. P refers to subgroups’ comparison. Bold mean that the value is significant (P < 0.05).
*Resections/year.